Blatchford VTF1 Instructions D'utilisation page 4

2 Construction
Principal Parts:
• Housing
• Pyramid Tube
• Axial Spring
• Screws
• Bearings
VTF
spring
Indicator
Securing Screws
4
Rotation Stop Screw
3 Function
The VTF comprises a housing assembly which contains a spring component that allows
the Pyramid Tube to deflect and/or rotate through a limited range under an axial
and or torsional load. When the load is removed the spring returns the Pyramid Tube
to its original position. The effect of this movement is to attenuate any shock forces
that would otherwise be transmitted to the stump socket interface both in axial and
rotational directions.
Aluminium Alloy
Titanium
Titanium
Titanium/Stainless Steel/Nylon
Reinforced Polymer
rate
531715
25Nm
533902
3
4
Pyramid Screw
910131
5
20Nm
Grub Screw x4
910474
Pyramid Tube
Axial Spring
Rate 1 - 539058
Rate 2 - 539059
Rate 3 - 539060
Rate 4 - 539061
Bearings
Housing
Blanking Screws
910490
938319/3-1119